JPH0760070B2 - Lance pipe refractory coating method - Google Patents
Lance pipe refractory coating methodInfo
- Publication number
- JPH0760070B2 JPH0760070B2 JP63328198A JP32819888A JPH0760070B2 JP H0760070 B2 JPH0760070 B2 JP H0760070B2 JP 63328198 A JP63328198 A JP 63328198A JP 32819888 A JP32819888 A JP 32819888A JP H0760070 B2 JPH0760070 B2 JP H0760070B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- core metal
- refractory
- metal pipe
- frame body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims description 11
- 239000002184 metal Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000011819 refractory material Substances 0.000 claims description 18
- 230000005587 bubbling Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ランスパイプの耐火物被覆方法に関し、特に
ランスパイプの先端部まで耐火物を一体的に被覆するこ
とができるランスパイプの耐火物被覆方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for coating a refractory material on a lance pipe, and more particularly to a method for coating a refractory material on a lance pipe capable of integrally coating a refractory material up to the tip of the lance pipe. Regarding
従来の技術 従来、溶銑、溶鋼等の溶湯中にガスやフラックスをバブ
リングしたり、インジェクションするランスパイプの成
形は、所定の空洞部を設けた枠体の両側端部の支持部に
ランスパイプの芯金パイプの両側端部分を支持し、上面
等の流し込み開口部から耐火物を空洞部に流し込んで芯
金パイプのまわりに耐火物を被覆していた。そのため、
枠体の支持部で支持していた芯金パイプの先端部分には
耐火物が被覆されていないので、上記のランスパイプを
脱型後に先端部分を手塗り作業等で別途耐火物を被覆し
ているものであった。Conventional technology Conventionally, the molding of a lance pipe for bubbling or injecting gas or flux into molten metal such as hot metal or molten steel is performed by forming the core of the lance pipe on the support part at both end portions of the frame body with a predetermined cavity. The both ends of the gold pipe were supported, and the refractory was cast into the cavity through the pouring opening such as the upper surface to cover the core metal pipe with the refractory. for that reason,
Since the tip of the core metal pipe supported by the supporting portion of the frame is not covered with the refractory, the tip of the lance pipe should be covered with another refractory by hand painting after removing the lance pipe. It was something that
また、特開昭56−87635号公報には、溶融金属浸漬ラン
スの保護被覆形成方法について型枠をランス体と共に回
転して均一な被覆層を形成することについて提案されて
いるが、浸漬ランスの先端面が直接溶湯に接触しないよ
うに一体的に被覆することはできないものであった。Further, Japanese Patent Laid-Open No. 56-87635 proposes a method for forming a protective coating on a molten metal immersion lance by rotating a mold with a lance body to form a uniform coating layer. It was impossible to integrally coat the tip surface so as not to directly contact the molten metal.
発明が解決しようとする課題 しかし、ランスパイプの芯金パイプの先端部分が直接溶
湯に接触しないように、かつ円滑に耐火物をランスパイ
プの先端部に被覆施工するのには熟練を要し、かつ手間
がかかるもので、生産に支障をきたしているものであっ
た。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, it is necessary for the tip portion of the core metal pipe of the lance pipe not to directly contact the molten metal, and for the smooth coating of the refractory material on the tip portion of the lance pipe to be accomplished by skill. In addition, it was time-consuming and hindered production.
課題を解決するための手段 本発明は上記のような点に鑑みたもので、上記の課題を
解決するために、溶湯中にガスやフラックスをバブリン
グしたり、インジョクションするために芯金パイプのま
わりに耐火物を被覆するランスパイプであって、両端部
に支持部を設けた成形用の枠体の上記支持部間に芯金パ
イプのまわりを覆うように耐火物を被覆するように設け
た空洞部に、上記空洞部に芯金パイプを挿入してこの芯
金パイプの一側部を枠体の一端側の支持部で支持すると
ともに、芯金パイプの他側部の先端部を枠体の他端側の
支持部から所定距離離して芯金パイプの上記先端部に嵌
入した補助支持棒を枠体の他端側の支持部で支持し、上
記枠体の流し込み開口部から耐火物を枠体の空洞部に流
し込んで、空洞部に挿入した芯金パイプの外周部および
補助支持棒のまわりにわたって耐火物を被覆し、上記耐
火物が硬化した後に芯金パイプの先端側から補助支持棒
を抜き取ることを特徴とするランスパイプの耐火物被覆
方法を提供するにある。Means for Solving the Problems The present invention has been made in view of the above points, and in order to solve the above problems, bubbling gas or flux in the molten metal, or a cored bar pipe for injection. A lance pipe for coating a refractory material around the core metal pipe provided between the support portions of the molding frame body having support portions at both ends thereof so as to cover the refractory material. The core metal pipe is inserted into the hollow portion and the one side portion of the core metal pipe is supported by the supporting portion on one end side of the frame body, and the tip portion of the other side portion of the core metal pipe is framed. An auxiliary support rod fitted into the above-mentioned tip portion of the core metal pipe at a predetermined distance from the support portion on the other end side of the body is supported by the support portion on the other end side of the frame body, and the refractory material from the pouring opening portion of the frame body. The outer circumference of the core pipe inserted into the cavity by pouring the There is provided a method for coating a refractory material on a lance pipe, characterized in that a refractory material is coated around a portion and an auxiliary support rod, and after the refractory material is hardened, the auxiliary support rod is pulled out from the tip side of the cored bar pipe. .
作用 本発明によれば、ランスパイプの芯金パイプの先端に嵌
入した補助支持棒によって、芯金パイプの先端部を枠体
の端部の支持部から所定の距離離して補助支持棒を介し
て枠体に支持して設置できる。そのため、枠体の所要の
流し込み開口部から耐火物を枠体の空洞部に流し込め
ば、芯金パイプのまわりにその先端に至るまで耐火物を
奇麗に被覆することができ、ランスパイプの先端部を別
途に耐火物を手塗り等で被覆する必要がなくなる。Effect According to the present invention, the auxiliary support rod fitted into the tip of the core metal pipe of the lance pipe separates the tip end portion of the core metal pipe from the support portion at the end portion of the frame by a predetermined distance, and the auxiliary support rod is interposed therebetween. It can be installed by supporting it on the frame. Therefore, if the refractory is poured from the required pouring opening of the frame into the cavity of the frame, the refractory can be neatly coated around the core metal pipe up to its tip. It is not necessary to separately coat the refractory with a hand coating or the like.
実施例 以下、本発明を実施例にもとづいて説明する。Examples Hereinafter, the present invention will be described based on Examples.
第１図以下は、本発明の一実施例である。ランスパイプ
（１）の成形用の枠体（２）は、第１図、第２図のよう
に下枠（３）と上枠（４）との割型構造としていて、中
央部に断面が六角形状の空洞部（５）を設け、上枠
（４）を左右に左上枠（６）と右上枠（７）とに分割し
て六角形状の上面の一側面を耐火物（８）の流し込み用
の流し込み開口部（９）としている。そして、第１図の
ように下枠（３）の両側端部にランスパイプ（１）を支
持する支持部（10）、（11）を設け、押え枠（12）、
（13）によってランスパイプ（１）を空洞部（５）の中
心部に架設しておけるようにしている。FIG. 1 and the following are examples of the present invention. The frame body (2) for molding the lance pipe (1) has a split type structure of a lower frame (3) and an upper frame (4) as shown in FIGS. 1 and 2, and has a cross section at the center. A hexagonal cavity (5) is provided, the upper frame (4) is divided into left and right upper frame (6) and upper right frame (7), and a refractory (8) is poured into one side of the hexagonal upper surface. It is used as a pouring opening (9). Then, as shown in FIG. 1, support portions (10) and (11) for supporting the lance pipe (1) are provided at both end portions of the lower frame (3), and the holding frame (12),
(13) The lance pipe (1) can be installed in the center of the cavity (5).
上記ランスパイプ（１）の架設は、第１図のように芯金
パイプ（14）の先端を一端部の支持部（11）から所定距
離だけ離して他側端部を支持部（10）に支持して押え枠
（12）で固定し、芯金パイプ（14）の先端側には図のよ
うに十分な剛性の補助支持棒（15）を芯金パイプ（14）
に密接状態に嵌入して補助支持棒（15）を他端部の支持
部（11）に支持し、第３図のように押え枠（13）で支持
部（11）に補助支持棒（15）を固定することによって行
えるようにしている。As shown in FIG. 1, the lance pipe (1) is installed such that the tip of the core pipe (14) is separated from the supporting portion (11) at one end by a predetermined distance, and the other end is used as the supporting portion (10). It is supported and fixed with a presser frame (12), and an auxiliary support rod (15) with sufficient rigidity is provided on the tip side of the core metal pipe (14) as shown in the figure.
The auxiliary support rod (15) is supported by the support portion (11) at the other end by closely fitting the auxiliary support rod (15) to the support portion (11) by the holding frame (13) as shown in FIG. ) Is fixed so that it can be done.
このようにして、芯金パイプ（14）を枠体（２）に架設
して、枠体（２）の上面の流し込み開口部（９）から所
定のキャスタブルの耐火物（８）を空洞部（５）に流し
込み、適宜に枠体（２）や芯金パイプ（14）を加振器
（図示せず）で加振しながら充填し、芯金パイプ（14）
のまわりに耐火物（８）を被覆するものである。耐火物
（８）の乾燥後、ランスパイプ（１）を枠体（２）から
脱型し、補助支持棒（15）を抜き取るものである。In this way, the core pipe (14) is installed on the frame (2), and the refractory (8) having a predetermined castable shape is inserted into the cavity (from the pouring opening (9) on the upper surface of the frame (2). 5), and the frame body (2) and the cored bar pipe (14) are filled while vibrating with a vibrator (not shown) as appropriate, and the cored bar pipe (14)
A refractory material (8) is coated around. After drying the refractory material (8), the lance pipe (1) is removed from the frame body (2) and the auxiliary support rod (15) is pulled out.
したがって、従来のようにランスパイプの先端部を別途
手塗り仕上げして被覆する必要がなくなり、品質の向上
ならびに生産性の向上がはかれる。Therefore, it is not necessary to separately coat the tip of the lance pipe by hand as in the conventional case, and the quality and productivity can be improved.
特に、実施例では、ランスパイプに被覆の耐火物を正六
角形の多角形状とし、その一側面部を流し込み開口部と
して耐火物を流し込むようにしているため、流し込みが
容易で、作業性がよいものである。そのため、スチール
ファイバー添加の耐火物や低水分のキャスタブル耐火物
を流し込んで被覆することも容易に行えるものである。
なお、多角形状は、五角形以上が耐火物を均一状に被覆
できて好ましく、また枠体部に垂直面部が少なくて脱型
しやすくて好ましいものである。In particular, in the embodiment, the lance pipe is formed into a regular hexagonal polygonal shape, and one side surface of the lance pipe is used as a pouring opening so that the refractory material can be poured into the lance pipe. Is. Therefore, it is possible to easily cast a refractory containing steel fiber or a castable refractory having a low water content for coating.
The polygonal shape is preferably a pentagonal shape or more because the refractory can be uniformly coated with the polygonal shape, and the frame portion has few vertical surface portions, which facilitates demolding.
上記実施例では、一本のランスパイプの成形について説
明したが、複数本同時に成形するように枠体を形成する
こともできるものである。In the above embodiment, the molding of one lance pipe has been described, but it is also possible to form the frame body so as to mold a plurality of lance pipes at the same time.
発明の効果 以上のように本発明にあっては、枠体の芯金パイプを補
助支持棒を介して両端支持できて、枠体の空洞部に耐火
物を充填すれば、芯金パイプの先端の補助支持棒のまわ
りにも耐火物を被覆でき、芯金パイプの先端側に耐火物
を筒状に突き出して被覆することができるものである。
また、枠体の流し込み開口部から耐火物を枠体の空洞部
に流し込んで、上記のように芯金パイプのまわりからそ
の先端側に筒状に耐火物を突き出して均一に一体的に芯
金パイプに被覆することができて、芯金パイプの先端部
に別途に耐火物を手塗り等で被覆する必要がなく、芯金
パイプの先端部分が直接溶湯に接触しないようにでき
て、ランスパイプの品質の向上、生産性の向上をはかる
ことができるものである。EFFECTS OF THE INVENTION As described above, according to the present invention, if the core metal pipe of the frame can be supported at both ends via the auxiliary support rods and the cavity of the frame is filled with the refractory material, the tip of the core metal pipe can be obtained. The refractory material can also be coated around the auxiliary support rod, and the refractory material can be cylindrically projected and coated on the tip end side of the core metal pipe.
In addition, the refractory is poured into the cavity of the frame through the pouring opening of the frame, and as described above, the refractory is cylindrically protruded from around the core pipe to the tip side thereof, and the core metal is uniformly and integrally formed. It is possible to coat the pipe, and it is not necessary to separately coat the tip of the core metal pipe with a refractory material by hand coating, etc., and it is possible to prevent the tip of the core metal pipe from directly contacting the molten metal. It is possible to improve the quality and productivity of the product.
第１図は、本発明の一実施例のランスパイプ成形説明用
の側断面図、第２図は同上の横断面図、第３図は同上の
端面図である。 １…ランスパイプ、２…枠体、５…空洞部、８…耐火
物、９…流し込み開口部、10、11…支持部、15…補助支
持棒。FIG. 1 is a side sectional view for explaining molding of a lance pipe according to an embodiment of the present invention, FIG. 2 is a transverse sectional view of the same, and FIG. 3 is an end view of the same. DESCRIPTION OF SYMBOLS 1 ... Lance pipe, 2 ... Frame, 5 ... Cavity, 8 ... Refractory, 9 ... Pouring opening, 10, 11 ... Supporting part, 15 ... Auxiliary support rod.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 数土 文夫 岡山県倉敷市水島川崎通１丁目（番地な し） 川崎製鉄株式会社水島製鉄所内 (72)発明者 漆谷 秋利 岡山県倉敷市水島川崎通１丁目（番地な し） 川崎製鉄株式会社水島製鉄所内 (56)参考文献 特開 昭56−87635（ＪＰ，Ａ) 特開 昭62−238705（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Fumio Sudo Inventor Mizushima Kawasaki-dori 1-chome, Kurashiki City, Okayama Prefecture (no address) Inside the Mizushima Works, Kawasaki Steel Co., Ltd. (72) Akuri Urushiya Mizushima Kawasaki, Kurashiki City, Okayama Prefecture 1st Street (no address) Kawasaki Steel Co., Ltd. Mizushima Steel Works (56) Reference JP-A-56-87635 (JP, A) JP-A-62-238705 (JP, A)
Claims (1)
たり、インジョクションするために芯金パイプのまわり
に耐火物を被覆するランスパイプであって、 両端部に支持部を設けた成形用の枠体の上記支持部間に
芯金パイプのまわりを覆うように耐火物を被覆するよう
に設けた空洞部に、上記空洞部に芯金パイプを挿入して
この芯金パイプの一側部を枠体の一端側の支持部で支持
するとともに、芯金パイプの他側部の先端部を枠体の他
端側の支持部から所定距離離して芯金パイプの上記先端
部に嵌入した補助支持棒を枠体の他端側の支持部で支持
し、 上記枠体の流し込み開口部から耐火物を枠体の空洞部に
流し込んで、空洞部に挿入した芯金パイプの外周部およ
び補助支持棒のまわりにわたって耐火物を被覆し、上記
耐火物が硬化した後に芯金パイプの先端側から補助支持
棒を抜き取ることを特徴とするランスパイプの耐火物被
覆方法。1. A lance pipe for covering a core metal pipe with a refractory material for bubbling gas or flux into a molten metal or for injecting the molten metal. In the cavity provided so as to cover the refractory so as to cover the core metal pipe between the supporting portions of the frame body, insert the core metal pipe into the cavity and connect one side of the core metal pipe. Auxiliary support that is supported by a support portion on one end side of the frame body, and the tip end of the other side portion of the core metal pipe is fitted into the tip end portion of the core metal pipe at a predetermined distance from the support portion on the other end side of the frame body. The rod is supported by the support portion on the other end side of the frame body, the refractory is poured into the cavity portion of the frame body from the pouring opening of the frame body, and the outer peripheral portion of the core metal pipe inserted into the cavity portion and the auxiliary support rod. After the refractory is coated around the Refractory coating method of the lance pipes, characterized in that extracting the auxiliary supporting bar from the front end side of the gold pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63328198A JPH0760070B2 (en) | 1988-12-26 | 1988-12-26 | Lance pipe refractory coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63328198A JPH0760070B2 (en) | 1988-12-26 | 1988-12-26 | Lance pipe refractory coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02171589A JPH02171589A (en) | 1990-07-03 |
| JPH0760070B2 true JPH0760070B2 (en) | 1995-06-28 |
Family
ID=18207547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63328198A Expired - Fee Related JPH0760070B2 (en) | 1988-12-26 | 1988-12-26 | Lance pipe refractory coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760070B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687635A (en) * | 1979-12-15 | 1981-07-16 | Yoshikawa Kogyo Kk | Forming method for protective covering layer of lance dipped in molten metal |
| JPH0639093B2 (en) * | 1986-04-09 | 1994-05-25 | 鹿島建設株式会社 | Method of manufacturing extruded building materials |
-
1988
- 1988-12-26 JP JP63328198A patent/JPH0760070B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02171589A (en) | 1990-07-03 |
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